SAN BERNARDINO >> Both deputy city managers are resigning, soon leaving the top tier of administrative leadership under City Manager Mark Scott vacant.

The resignation of Deputy City Manager Nita McKay, whose position focused on finances, is effective now, and her reasons weren’t clear Thursday.

Deputy City Manager Bill Manis, who was in charge of economic development, leaves April 14 to become city manager of Rosemead, a 53,000-person city in Los Angeles County.

The departures enable Scott to shape the city where he took the top unelected position in February, according to Monica Lagos, the city’s communications manager.

“It means Mr. Scott has an opportunity to fill positions and restructure or be able to implement the structure he would like to see,” Lagos said. “He has so much experience that I have all the faith in the world that he will structure his team in an effective way.”

Filling positions across the city and stabilizing the workforce is a top priority for Scott, Lagos said.

Scott was unavailable Thursday, but would send McKay’s notice of resignation Friday, according to Manis.

For his part, Manis said he would miss San Bernardino and wished the city continued success, echoing his resignation letter.

The letter, dated March 18, painted a picture of progress in the city.

“I leave feeling confident that I contributed to the mission of moving San Bernardino forward during my tenure,” Manis wrote, before listing nine examples of that. “As you have seen, we have some significant contributors on the City team. I have enjoyed working alongside our dedicated team and wish everyone continued success as exiting bankruptcy is now in the horizon.”